<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>CSS列表</title>
    <style>
      ul.c1 {
        list-style-type: none;
      }
      ul.c2 {
        list-style-type: decimal;
        list-style-position: inside;
      }
    </style>
  </head>
  <body>
    <ul class="c1">
      <li>列表项1</li>
      <li>列表项2</li>
      <li>列表项3</li>
      <li>列表项4</li>
    </ul>
    <ul class="c2">
      <li>列表项1</li>
      <li>列表项2</li>
      <li>列表项3</li>
      <li>列表项4</li>
    </ul>
  </body>
</html>
